High Current MOSFET Based Power Switch with Gate Driver

This power load switch project provides a simple and inexpensive method for power control. It is intended for driving a resistive or inductive load. A TTL logic signal from the system turns the load switch ON and OFF. The project consists of a low ohm N-Channel Power Trench MOSFET FDB0300N1007L and Gate driver MAX5048 chip.  The load can be controlled by applying a PWM signal or Logic input.

The MAX5048A is a high-speed MOSFET driver capable of sinking/sourcing 7.6A/1.3A peak currents. These devices take logic input signals and drive a large external MOSFET. The MAX5048A has noninverting inputs that give the user greater flexibility in controlling the MOSFET. They feature two separate outputs working in a complementary mode, offering flexibility in controlling both turn-on and turn-off switching speeds.

Applications

• Heater Control
• High Current LED Dimmer or ON/OFF
• Solenoid
• DC Motors
• Power Management (High Current Power ON/OFF)
• Lamp Dimmer or Lamp ON/OFF Control
• Battery Protection Under/Over Voltage
• Under and Over Current Switch

Features

• Supply 5V to 12 V Single Supply Operation (Load 10 Amps Continues Without Fan, 15 Amps with Fan
• Supply 12V to 60V (Required Dual Supply for Load and Gate Driver) Load Up to 20Amps
• Input PWM or Logic 3.3V to 12V
• PWM Frequency Input up to 50Khz (Tested)
• PCB Dimensions 48.42 x 25.24 mm